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Dumb question: what is the difference in a ported sub if I use one 19" long 4" wide port instead of two 38" by4"?
Marco
 

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Ok, one more: I have some part of Dayton 4" port tube, I need an elbow but it is not in stock anymore, what if I use standard 4" pvc elbow tube? If I get a little difference in diameter does it cause turbulence and noise? Marco
 

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Ok, one more: I have some part of Dayton 4" port tube, I need an elbow but it is not in stock anymore, what if I use standard 4" pvc elbow tube? If I get a little difference in diameter does it cause turbulence and noise? Marco
It could make some noise at the junctions at high airspeeds. Use a wide radius bend vs a tight bend elbow.


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